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Low(er) ambient cooling

Jul 14, 2006
2,057 (0.42/day)
System Name It's just a computer
Processor i9-9900K
Motherboard eVGA Z390 Dark
Cooling D5, PA140.3, HK Rev. 3.0
Memory G.Skill F4-4500C19D-16GTZKKE
Video Card(s) eVGA RTX2080 FTW3 Ultra
Storage Samsung 960 EVO M.2
Display(s) LG 32GK650F
Case Thermaltake Xaser VI
Audio Device(s) Onboard /Z-5500
Power Supply Corsair AX1200
Mouse Logitech
Keyboard Logitech
Software Win7 Ultimate x64 SP1
Nice crisp fall Saturday morning.

Weather Channel said 28°F at the airport, usually a few degrees warmer here at the house.

I thought I would utilized that nice cool air.

Placed my radiator in an open window, my digital thermometer said 0°C.

Sig rig.

CPU @ 5300MHz, voltages on auto.

Ran LinX 0.9.5 to heat things up. Core max at 62°C.


Fired up AIDA64 Stress Test using FPU, which usually runs in the low 90°C at 5100MHz. Core Max @ 74°C.

Dec 31, 2009
15,735 (4.36/day)
I miss benchmarking like this... :)

No subambient cooling methods? Winter? Time to dress warm and open the windows! Hell I've even used some mix to prevent freezing doing this...
Nov 6, 2019
26 (2.36/day)
Processor Core i7 8700K@5 GHz
Motherboard MSI Z370 Gaming Pro Carbon
Cooling 2xEKWB Rads, EKWB Reservoir 250, Aqua Computer Kryos Next CPU Cooler, Phanteks Glacier GPU Cooler
Memory 16 GB DDR4 GSkill Trident Z 3200
Video Card(s) Asus ROG STRIX RTX 2080 O8G (GPU@2115 MHz/VRAM@7800MHz)
Storage 1x Samsung Evo 840 SSD 256, 1x WD Blue 1 TB HDD
Display(s) Asus ROG Swift PG248 1080p Display/144Hz/G-Sync
Case Fractal Design R6 with Window
Audio Device(s) Realtek onboard
Power Supply be quiet 650W Straight Power
Mouse Logitech G502
Keyboard Cherry KB
Software Win 10 Pro
Benchmark Scores FireStrike: 25953/Extreme: 13141/Ultra: 7099/TimeSpy: 11426/Superposition: 7667/CinebenchR20: 3916
Place your radiator in a box with water and crushed ice and you get easy below ambient ;-)

Or use a chiller:
Dec 14, 2013
1,219 (0.56/day)
Processor Ryzen 2700X
Motherboard X470 Tachi Ultimate
Cooling Scythe Big Shuriken 3
Memory C.R.S.
Video Card(s) Radeon VII
Software Win 7
Benchmark Scores Never high enough
The cooling tower I made a few years ago can go sub-ambient and with these temps it's really effective, being it's an evaporative cooling tower setup outdoors.
Does a great job with about anything I've ran it with including such as my FX-9590, I even ran that in August doing a benchmark and the tower held temps within an acceptable range.

After this Winter I'll probrably do a rebuild of it to improve the design using what I learned from this one to make the next tower even better.
Jan 29, 2012
5,450 (1.91/day)
System Name natr0n-PC
Processor 2600K @ 4.4GHz / Dual Xeon 5675's @ 3.33GHz 12c/24t
Motherboard Sabertooth Z77 / GA-7TESM
Cooling Deepcool Assassin - 3 Fans / Custom
Memory 2x8GB 2133MHz Samsung Dual Channel / 6x4GB 1333MHz Samsung Hexa Channel
Video Card(s) Evga GTX 980 SC / Asus Strix 980ti
Storage Various SSD/HD
Display(s) Samsung 23' 2048x1152 / Various Dells
Case Sunbeam Transformer Silver / Matrexx 55
Audio Device(s) SB X-fi on all systems
Power Supply Corsair TX 650w / Evga NEX 750B
Mouse Alienware AW558 @ 5000 DPI
Keyboard Asus KB34211
Software XP64/7/8.1/10
Benchmark Scores http://valid.x86.fr/79kuh6
Here in FL after so long its a great weather light rain and cool.

Hot running laptops would be great to experiment with on a cool day outside.